1. Potentialised Partial Differential Equations in Economic Geography and Spatial Economics: Multiple Dimensions and Control

   • Johan F. Kaashoek
   • Jean H. P. Paelinck

   OriginalPaper Pages: 1 - 23

2. Geometric Formulation of Higher-Order Lagrangian Systems in Supermechanics

   • José F. Cariñena
   • Héctor Figueroa

   OriginalPaper Pages: 25 - 58

3. Fundamental Geometric Structures for the Dirac Equation in General Relativity

   • Daniel Canarutto
   • Arkadiusz Jadczyk

   OriginalPaper Pages: 59 - 92

4. Three Solvable Many-Body Problems in the Plane

   • F. Calogero

   OriginalPaper Pages: 93 - 111